1285080025 has 12 divisors (see below), whose sum is σ = 1608121900. Its totient is φ = 1018630080.

The previous prime is 1285080023. The next prime is 1285080037. The reversal of 1285080025 is 5200805821.

It can be written as a sum of positive squares in 6 ways, for example, as 72369049 + 1212710976 = 8507^2 + 34824^2 .

It is not a de Polignac number, because 1285080025 - 2¹ = 1285080023 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1285080023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 233070 + ... + 238519.

Almost surely, 2^1285080025 is an apocalyptic number.

It is an amenable number.

1285080025 is a deficient number, since it is larger than the sum of its proper divisors (323041875).

1285080025 is a wasteful number, since it uses less digits than its factorization.

1285080025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471708 (or 471703 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 31.

The square root of 1285080025 is about 35848.0128459026. The cubic root of 1285080025 is about 1087.2015369787.

Adding to 1285080025 its reverse (5200805821), we get a palindrome (6485885846).

The spelling of 1285080025 in words is "one billion, two hundred eighty-five million, eighty thousand, twenty-five".